My Windows computer keeps blue-screening (BSOD) — what should I do?

First, note the STOP error code shown on the blue screen — it tells you the likely cause category (memory, driver, disk). Try Windows Memory Diagnostic to rule out RAM issues, and roll back any recently updated drivers via Device Manager. If it keeps happening with different, seemingly random error codes, that's often a sign of a genuine hardware fault (RAM or drive) rather than software. Whatever you do, back up your data before reinstalling — that's the step people skip and regret.